Home / 219,412.20-328,859.10-163,943.40

Finding the Fourth Proportional to 219,412.20, 328,859.10 and 163,943.40

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Solution

The fourth proportional to 219,412.20, 328,859.10 and 163,943.40 is: 245,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,412.20 : 328,859.10 = 163,943.40 : x
  2. Step 2: Convert to fraction form
    219,412.20/328,859.10 = 163,943.40/x
  3. Step 3: Cross multiply
    219,412.20x = 328,859.10 × 163,943.40
  4. Step 4: Simplify right side
    219,412.20x = 53,914,278,974.94
  5. Step 5: Solve for x
    x = 53,914,278,974.94/219,412.20
  6. Step 6: Final answer
    x = 245,721.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.